White opacified glaze for jun porcelain

Abstract

White opacified glaze for jun porcelain is prepared from raw materials in parts by weight as follows: 26-34 parts of white feldspar, 8-10 parts of fly ash, 12-18 parts of frit, 14-18 parts of quartz,10-14 parts of calcite, 2-4 parts of bone powder, 4-6 parts of magnesite and 4-6 parts of fluorite. The fly ash replaces part of feldspar to be used as a main solvent, then, magnesite and fluorite areadded to relieve yellowish-brown influence caused by fly ash and adverse firing influence caused by high impurities and high loss on ignition, the opacifying effect caused by micro bubbles easily produced by the fly ash can be enhanced, the fly ash can be successfully used for firing of the white opacified glaze, the glaze is slight yellow ivory white, the glaze surface has a good opacifying effect, and the white opacified glaze has higher ornamental value.

Description

technical field [0001] The invention belongs to the technical field of Jun porcelain production, and in particular relates to a white opacified glaze of Jun porcelain. Background technique [0002] Jun porcelain is a special product in Yuzhou City, my country, and is one of the five famous ancient Chinese porcelains. Its production is mainly based on the scientific configuration of blanks and glazes, and the change of flame atmosphere is controlled during the firing process. The same glaze color can be fired to produce mottled kiln-changing colors, which is known as "one color in the kiln, and many colors out of the kiln". [0003] The kiln changes mainly come from the formula of the glaze and the strict firing process. The glazes commonly used in Yuzhou mainly include feldspar, this medicine, black medicine, quartz, talc, calcite, plant ash, bone ash, etc., and the modern Jun kiln In order to improve the firing rate, chemical reagents such as copper oxide, zinc oxide, and t...

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Problems solved by technology

[0003] The kiln changes mainly come from the formula of the glaze and the strict firing process. The glazes commonly used in Yuzhou mainly include feldspar, this medicine, black medicine, quartz, talc, calcite, plant ash, bone ash, etc., and the modern Jun kiln In order to improve the firing rate, chemical reagents such as copper oxide, zinc oxide, and tin oxide are generally added to the formula, resulting in high production costs of Jun porcelain. At present, zircon is usually added to the white opaque glaze in the production of Jun porcelain. , leading to higher costs; and with the continuous exploitation of local glaze raw materials, it is also facing an increasingly severe trend of resource shortage; therefore, it is necessary to find a new alternative raw material

[0004] Fly ash is the fine ash produced by the combustion of coal powder or coal gangue powder in the process of coal-fired heating and power generation. The annual output of my country is huge. At present, the utilization rate of fly ash in my country is not high, and fly ash Its chemical composition is mainly silicon dioxide and alumina, which are similar to the commonly used raw materials of Jun porcelain. In recent years, there have been preliminary studies on the application of fly ash to ceramics, but the use of fly ash to make white opaque glaze Research has rarely reported

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